TI  - GOvernment services
PT  - JOUR
DP  - 1949
TA  - Journal of the American Medical Association
pages = {943-944},
VI  - 139
IP  - 14
AID  - 10.1001/jama.1949.02900310047015 [doi]
4100  - http://dx.doi.org/10.1001/jama.1949.02900310047015
SO  - Journal of the American Medical Association April 2, 1949 139(14):943